Ex-Failbetter and Sunless Sea writer Alexis Kennedy has abandoned Earth for a moment to write a scenario for Paradox’s space grand strategy Stellaris. In it, an entity reaches out across space to call your civilization to it. Why, and how, form the story of the event which can spawn for all players since it was added to Steam yesterday evening. You can see the short teaser trailer above.

In writing about it, Kennedy calls Horizon Signal a cross between The Twilight Zone and Event Horizon, a “full-on space-ghost-story” that he says seems to be what people wanted to see. He also says that it’s rather large, an “interactive novelette” of linked events, to make sure people notice it against the backdrop of the dozens of possible in-game events.